9012239 has 2 divisors, whose sum is σ = 9012240. Its totient is φ = 9012238.

The previous prime is 9012217. The next prime is 9012247. The reversal of 9012239 is 9322109.

It is a strong prime.

It is an emirp because it is prime and its reverse (9322109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9012239 - 2²⁰ = 7963663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9012259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4506119 + 4506120.

It is an arithmetic number, because the mean of its divisors is an integer number (4506120).

Almost surely, 2^9012239 is an apocalyptic number.

9012239 is a deficient number, since it is larger than the sum of its proper divisors (1).

9012239 is an equidigital number, since it uses as much as digits as its factorization.

9012239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 9012239 is about 3002.0391403178. The cubic root of 9012239 is about 208.1026290257.

The spelling of 9012239 in words is "nine million, twelve thousand, two hundred thirty-nine".